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Premixed colored pervious concrete

A permeable concrete and color technology, applied in the field of permeable concrete, can solve the problems of poor cementation between slurry and aggregate, easy fading of colored surface, insufficient bearing capacity, etc. The effect of bonding force

Inactive Publication Date: 2021-06-04
陕西建工集团混凝土有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Problems and shortcomings of the existing colored permeable concrete surface: 1) At present, the construction of permeable concrete basically adopts on-site mixing method, which will inevitably cause noise and dust pollution; 2) The cementation of the color surface slurry and aggregate is poor, and stones are easy Falling off, poor durability; 3) Insufficient bearing capacity, easy to damage; 4) The color surface layer is easy to fade, and the surface is easy to efflorescence, which is off-white, which affects the appearance of the ring

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The ready-mixed colored permeable concrete of this embodiment includes the following components by weight: 297 parts of cement, 53 parts of fly ash, 20 parts of reinforcing agent, 1500 parts of coarse aggregate, 3.5 parts of water reducer, 105 parts of mixing water , 0.52 parts of tackifier, 12 parts of dyeing agent.

[0028] The preparation method of the ready-mixed color permeable concrete of the present embodiment comprises the following steps:

[0029] Step 1. Add the coarse aggregate and 50% mixing water into the forced mixer and mix for 30s to obtain the mixed coarse aggregate; the moisture content of the coarse aggregate is 0.1%, and the coarse aggregate is 5mm-10mm single-stage with limestone crushed stone;

[0030] Step 2. Add cement, fly ash, reinforcing agent, tackifier and dyeing agent to the pre-mixed coarse aggregate obtained in step 1 and mix for 40 seconds, then add the remaining mixing water and water reducer and mix for 50 seconds to obtain the pre-mi...

Embodiment 2

[0034] The ready-mixed colored permeable concrete of this embodiment includes the following components by weight: 293 parts of cement, 53 parts of fly ash, 17 parts of reinforcing agent, 1520 parts of coarse aggregate, 3.4 parts of water reducer, 110 parts of mixing water , 0.52 parts of tackifier, 14 parts of dyeing agent.

[0035] The preparation method of the ready-mixed color permeable concrete of the present embodiment comprises the following steps:

[0036] Step 1. Add the coarse aggregate and 50% mixing water into the forced mixer and stir for 30s to obtain the mixed coarse aggregate; the moisture content of the coarse aggregate is 0.15%, and the coarse aggregate is 5mm-10mm single-stage with limestone crushed stone;

[0037] Step 2. Add cement, fly ash, reinforcing agent, tackifier and dyeing agent to the pre-mixed coarse aggregate obtained in step 1 and mix for 40 seconds, then add the remaining mixing water and water reducer and mix for 50 seconds to obtain the pre-...

Embodiment 3

[0041] The ready-mixed color permeable concrete of this embodiment includes the following components by weight: 301 parts of cement, 52 parts of fly ash, 23 parts of reinforcing agent, 1480 parts of coarse aggregate, 3.5 parts of water reducer, 100 parts of mixing water , 0.53 parts of tackifier, 11 parts of dyeing agent.

[0042] The preparation method of the ready-mixed color permeable concrete of the present embodiment comprises the following steps:

[0043] Step 1. Add the coarse aggregate and 50% mixing water into the forced mixer and stir for 30s to obtain the mixed coarse aggregate; the moisture content of the coarse aggregate is 0.13%, and the coarse aggregate is 5mm-10mm single-stage with limestone crushed stone;

[0044] Step 2. Add cement, fly ash, reinforcing agent, tackifier and dyeing agent to the pre-mixed coarse aggregate obtained in step 1 and mix for 40 seconds, then add the remaining mixing water and water reducer and mix for 50 seconds to obtain the pre-mi...

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Abstract

Disclosed premixed colored pervious concrete is prepared from the following components in parts by weight: 289 to 306 parts of cement, 51 to 54 parts of fly ash, 15 to 25 parts of a reinforcing agent, 1450 to 1550 parts of coarse aggregate, 3.4 to 3.6 parts of a water reducing agent, 90 to 120 parts of mixing water, 0.51 to 0.54 part of a tackifier and 10 to 15 parts of a coloring agent. The cement is adopted as a main cementing material, the coal ash improves the workability and durability, the reinforcing agent improves the strength of the premixed colored pervious concrete and inhibits surface efflorescence, the tackifier improves the bonding force between slurry and an aggregate interface, and the inorganic coloring agent ensures that the color of a surface layer of the premixed colored pervious concrete is durable and does not fade. In the premixed colored pervious concrete, the slurry can uniformly wrap the aggregate and is clustered by hand holding, the cementing force of the slurry and the aggregate is strong, stones do not fall off for a long time, the permeable rate after hardening is high, the strength is not lower than C20, the color is lasting and does not fade, saltpetering is avoided, and the durability is good.

Description

technical field [0001] The invention belongs to the technical field of permeable concrete, in particular to a ready-mixed colored permeable concrete. Background technique [0002] With the introduction of the concept of "sponge city" and the strong support of national policies, permeable concrete has been widely studied and applied. [0003] Permeable concrete, also known as porous concrete, is a kind of porous lightweight concrete mixed with cement, stones, admixtures and reinforcing materials. Beautiful, it is a new type of ground with high strength and overall paving. Colored permeable concrete is to add dyeing agent to dye the permeable concrete when mixing, so that the permeable concrete has a variety of colors, and the paving construction is carried out according to different environments and individual decoration styles to achieve a harmonious and unified sensory effect with the surrounding environment. [0004] Under normal circumstances, pervious concrete pavement...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B111/82
CPCC04B28/04C04B2111/82C04B2201/50C04B2111/00284C04B18/08C04B14/02C04B2103/302C04B2103/44C04B2103/54C04B14/06
Inventor 蒙飞杨小敏朱玲朱延斌张恒帅王珂
Owner 陕西建工集团混凝土有限公司
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